I manage IT for a medium sized company that shares a lot of Excel 2010 files between users at various times of the day. We're using a Terminal Server environment (S2008R2).
Sometimes, a user will try to open an Excel file and get the message that the file is locked by %user% (it names the user) with the "Read Only", "Notify", "Cancel" options, but that user isn't even logged in to the domain.
Today, I had one user try to open an Excel file that said it was locked by a user that hasn't been with the company for 5 weeks. The user's AD account was disabled weeks ago. The server has even been rebooted since then.
How is this possible, and how can I stop this from happening?